/Engine/Source/Runtime/GeometryCore/Public/CompGeom/ConvexDecomposition3.h
Compute a decomposition with the desired number of hulls Note: A future version of this function may replace NumOutputHulls with MaxOutputHulls, but this version keeps both parameters for compatibility / consistent behavior.
void Compute ( int32 NumOutputHulls, int32 NumAdditionalSplits, double ErrorTolerance, double MinThicknessTolerance, int32 MaxOutputHulls )